Home / 152,128.33-209,935.29-84,139.97

Finding the Fourth Proportional to 152,128.33, 209,935.29 and 84,139.97

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Solution

The fourth proportional to 152,128.33, 209,935.29 and 84,139.97 is: 116,112.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,128.33 : 209,935.29 = 84,139.97 : x
  2. Step 2: Convert to fraction form
    152,128.33/209,935.29 = 84,139.97/x
  3. Step 3: Cross multiply
    152,128.33x = 209,935.29 × 84,139.97
  4. Step 4: Simplify right side
    152,128.33x = 17,663,948,268.39
  5. Step 5: Solve for x
    x = 17,663,948,268.39/152,128.33
  6. Step 6: Final answer
    x = 116,112.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.